| //===-- llvm/MC/MCLinkerOptimizationHint.cpp ----- LOH handling -*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/MC/MCLinkerOptimizationHint.h" |
| #include "llvm/MC/MCAsmLayout.h" |
| #include "llvm/MC/MCAssembler.h" |
| #include "llvm/Support/LEB128.h" |
| |
| using namespace llvm; |
| |
| // Each LOH is composed by, in this order (each field is encoded using ULEB128): |
| // - Its kind. |
| // - Its number of arguments (let say N). |
| // - Its arg1. |
| // - ... |
| // - Its argN. |
| // <arg1> to <argN> are absolute addresses in the object file, i.e., |
| // relative addresses from the beginning of the object file. |
| void MCLOHDirective::emit_impl(raw_ostream &OutStream, |
| const MachObjectWriter &ObjWriter, |
| const MCAsmLayout &Layout) const { |
| encodeULEB128(Kind, OutStream); |
| encodeULEB128(Args.size(), OutStream); |
| for (LOHArgs::const_iterator It = Args.begin(), EndIt = Args.end(); |
| It != EndIt; ++It) |
| encodeULEB128(ObjWriter.getSymbolAddress(**It, Layout), OutStream); |
| } |